A Harley-Davidson Softail Slim averages €17,923 across all model years. Right now 11 are listed for sale, with the cheapest sitting around €14,000 (typically older years) and the priciest around €20,950 (recent years). The median is €17,950. A good price for a Harley-Davidson Softail Slim is under €16,375; anything over €19,950 is on the high side compared with similar listings. Selling to a dealer instead of privately usually means a lower price: expect roughly €13,462 to €16,155 for this model, depending on year and condition.